]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[MMC] sdhci: Avoid sdhci DMA boundaries
authorPierre Ossman <drzeus@drzeus.cx>
Sun, 2 Jul 2006 15:51:35 +0000 (16:51 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Sun, 2 Jul 2006 15:51:35 +0000 (16:51 +0100)
commitbab7696184bbf0ea48d56902bd1f9ac983079ad2
treef8b90b4c561858c47624307df4d1e67498f23df2
parenta406f5a3b68ee1db2306a2ba1c9b00dbd3505d05
[MMC] sdhci: Avoid sdhci DMA boundaries

The sdhci controllers will issue an interrupt when a configurable number of
bytes have been transfered using DMA. The purpose is to handle multiple,
scattered memory pages.

Unfortunately, it requires that all transfers are completely aligned to
memory pages, which we cannot guarantee. So we just disable the function.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drivers/mmc/sdhci.c
drivers/mmc/sdhci.h